A:1 mol N2所含有的原子数为NA
B:标准状况下,22.4 LHF中含有的HF分子数为NA
C:标准状况下,22.4 L氯化氢所含的原子数为NA
D:24 g O2分子和24 g O3分子所含的氧原子数目相等
He spent a lot of time on English. _______, he got the most points in the English test.
它共____画,友共____画。